Sorting in ASP.NET Core Pivot Table control

Member Sorting

Allows to order field members in rows and columns either in ascending or descending order. By default, field members in rows and columns are in ascending order.

Member sorting can be enabled by setting the enableSorting property in e-datasourcesettings tag to true. After enabling this API, click the sort icon besides each field in row or column axis, available in field list or grouping bar UI for re-arranging members either in ascending or descending order.

By default the enableSorting property in e-datasourcesettings tag set as true. If we set it as false, then the field members arrange in pivot table as its data source order. And, the sort icons in grouping bar and field list buttons will be removed.

Member sorting can also be configured using the e-sortsettings tag through code behind, during initial rendering. The settings required to sort are:

• name: It allows to set the field name.
• order: It allows to set the sort direction either to ascending or descending of the respective field.

By default the order property in the e-sortsettings tag set as Ascending. Meanwhile, we can arrange the field members as its order in data source by setting it as None where the sort icons in grouping bar and field list buttons for the corresponding field will be removed.

@using Syncfusion.EJ2.PivotView

<ejs-pivotview id="PivotView" height="300">
    <e-datasourcesettings dataSource="@ViewBag.DataSource" expandAll="false">
        <e-sortsettings>
            <e-field name="Country" order="Descending"></e-field>
        </e-sortsettings>
        <e-rows>
            <e-field name="Country"></e-field>
            <e-field name="Products"></e-field>
        </e-rows>
        <e-columns>
            <e-field name="Year" caption="Year"></e-field>
            <e-field name="Quarter"></e-field>
        </e-columns>
        <e-values>
            <e-field name="Sold" caption="Units Sold"></e-field>
            <e-field name="Amount" caption="Sold Amount"></e-field>
        </e-values>
    </e-datasourcesettings>
</ejs-pivotview>

public ActionResult Index()
{
    var data = GetPivotData();
    ViewBag.DataSource = data;
    return View();
}

Alphanumeric Sorting

Usually string sorting is applied to field members even if it starts with numbers. But this kind of field members can also be sorted on the basis of numbers that are placed at the beginning of the member name. This can be achieved by setting the dataType property as number to the desired field.

<ejs-pivotview id="pivotview"  width="100%" height="300"  showGroupingBar="true">
    <e-datasourcesettings dataSource="@ViewBag.DataSource" >
        <e-formatsettings>
            <e-field name="Amount" format="C0" maximumSignificantDigits="10" minimumSignificantDigits="1"></e-field>
        </e-formatsettings>
        <e-rows>
            <e-field name="ProductID" dataType="number"></e-field>
        </e-rows>
        <e-columns>
            <e-field name="Country"></e-field>
        </e-columns>
        <e-values>
            <e-field name="Sold" caption="Units Sold"></e-field>
            <e-field name="Amount" caption="Sold Amount"></e-field>
        </e-values>
    </e-datasourcesettings>
    <e-gridSettings columnWidth="140"></e-gridSettings>
</ejs-pivotview>

public ActionResult Index()
{
    var data = GetPivotData();
    ViewBag.DataSource = data;
    return View();
}

Value Sorting

This property is applicable only for relational data source.

Allows to sort individual value field and its aggregated values either in row or column axis in both ascending and descending order. It can been enabled by setting the enableValueSorting property in ejs-pivotview tag to true. On enabling, end user can sort the values by directly clicking the value field header positioned either in row or column axis of the pivot table component.

The value sorting can also be configured using the e-valuesortsettings option through code behind. The settings required to sort value fields are:

• headerText: It allows to set the header names with delimiters, that is used for value sorting. The header names are arranged from Level 1 to Level N, down the hierarchy with a delimiter for better specification.
• headerDelimiter: It allows to set the delimiters string to separate the header text between levels.
• sortOrder: It allows to set the sort direction of the value field.

Value fields are set to the column axis by default. In such cases, the value sorting applied will have an effect on the column alone. You need to place the value fields in the row axis to do so in row wise. For more information, please refer here.

<ejs-pivotview id="PivotView" height="300" enableValueSorting="true">
    <e-datasourcesettings dataSource="@ViewBag.DataSource" expandAll="false">
        <e-valuesortsettings headerText="FY 2015##Sold Amount" headerDelimiter="##" sortOrder="Descending"></e-valuesortsettings>
        <e-rows>
            <e-field name="Country"></e-field>
            <e-field name="Products"></e-field>
        </e-rows>
        <e-columns>
            <e-field name="Year" caption="Year"></e-field>
            <e-field name="Quarter"></e-field>
        </e-columns>
        <e-values>
            <e-field name="Sold" caption="Units Sold"></e-field>
            <e-field name="Amount" caption="Sold Amount"></e-field>
        </e-values>
    </e-datasourcesettings>
</ejs-pivotview>

public ActionResult Index()
{
    var data = GetPivotData();
    ViewBag.DataSource = data;
    return View();
}